Improvement in stop-motions for warping-machines



J. B. GREENHALGH. Stop-Motion for Warping-Machines.

Patented, Jan. 29, 1878;

ATTORNEYS.

NYPETERS PHOTO-UTHOGRAFHER, WASMNGTDH. D cv UNITED STATES PATENT OFFICE.

JOHN B. GREENHALGH, OF UXBRIDGE, MASSACHUSETTS.

IMPROVEMENT IN STOP-MOTIONS FOR WARPlNG-MACHINESQ Specification formingpart of Letters Patent N0. 199,702, dated January 29, 187B applicationfiled July 30, 1877,

To all whom it may concern.-

Be it known that I, JOHN B. GREENHALGH, of Uxbridge, county ofWorcester, and State of Massachusetts, have invented a new and ImprovedStop-Motion for Warping-Machines, of which the following is aspecification:

This invention has relation to stop-motions for warping-machines; andthe nature of my invention consists in arranging between the drum orreel and the spools a series of gravi' tating wires, through eyes formedon which the threads pass, in combination with a vibrating bar andtripping devices which will actuate a belt-shifter and stop the motionof the machine should a thread break, as will be understood from thefollowing description.

In the annexed drawing, Figure 1 is a view in detail and partly insection, illustrating my improved stop-motion. Fig. 2 is an end view,partly in section.

Similar letters of reference indicate corresponding parts in the twofigures.

The letter A designates one of the supports for the shaft of a cylinder,13, aroimd which is wound the yarn to be spooled. On one end of theshaft of this cylinder an eccentric, a, is keyed, which operates throughthe medium of a pitman-rod, O, on an arm, D, that is keyed on a tubularshaft, E. The arm D and another arm, D, also keyed on shaft E, havesecured to their ends a rod, 1).

Passing through the shaft E is a shaft, F, which has its hearings in twostandards, A A, and to which'two arms, 0 c, are keyed, which have aslotted plate, Gr, secured to their ends. 0n opposite sides of the slotthrough said plates are arranged inclined guides e 0. Above the slottedplate G is a perforated bar, H, which has its end bearings in thestandards A A, and to which a guide, I, is secured. This guide I isperforated, and receives loosely through it dropwires g, the upper endsof which are constructed with hooks g. The wires 9 are allowed freevertical play through the guide I. On one end of the shaft F is keyed atrip, h, which receives oscillating mo tion at certain times through themedium of said shaft F, and operates on a'yoke, K, to

lift a latch, L, held down by a spring, S. With the lower end of thelatch L the upper end of a belt-shifter, N, engages. \Vhen the latch Lis lifted the belt-shifter is released from it, and by the recoil of aspring, 8, will throw the driving-belt from the fast to the loose pulleyand stop the machine.

The threads are carried from the drum B and passed through theperforated bar H, thence through the hooks or eyes g on dropwires g, andthence to the spools. The rod 12 receives constant vibration from thedrum B, passing forward and backward beneath the lower ends of thedrop-wires g as, long as the machine is in operation and no threads arebroken. Should a thread break from any cause, the wire 9, which is heldup from it, will drop, and the end of such wire will pass through theslotted plate G and be struck by the rod 11, causing a movement of shaftF, thereby raising latch L and throwing the belt-shifter into operation.The machine will instantly stop, and the broken thread can be mended andits drop-wire disengaged from the plate G, when the operation of windingwill proceed as before.

Having thus fully described myinvention, I claim as new and desire tosecure by Letters Patent- 1. The combination,in a warping-machine, ofthe swinging slotted plate G, having arms 0 and guides e, the vibratingrod b, having arms D D, and the solidshaft F and tubular shaft E withthe drop-wires g, perforated guideboard-H I, and mechanism, asdescribed, for connecting the same with a be1t-shifting.device orstop-motion, sul'vstantially as herein set forth.

2. The combination of the yoke K, latch L, spring S, belt-shifting leverN, and spring .9 with the shaft F, having oscillating trip h, drop-wiresg, slotted plate G, and rod b, as and for the purpose set forth.

JOHN B. GREENHALGH.

Witnesses:

J AMES H. Moonouse, THOMAS SMITH.

